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Modified IRR (MIRR) fixes IRR's reinvestment rate assumption by using explicit finance/reinvestment rates; often more realistic.
Guide étape par étape
- 1Input cash flows, finance rate (for negative CF), reinvestment rate (for positive CF)
- 2Calculate MIRR
- 3Compare to regular IRR
Exemples résolus
Entrée
Standard IRR 25%, but reinvestment at 10%
Résultat
MIRR ≈ 18% (more realistic)
Avoids unrealistic assumptions
Erreurs courantes à éviter
- ✕Using same rate for finance and reinvestment
- ✕Not reflecting realistic opportunity costs
Questions fréquentes
Should I always use MIRR?
Yes if assumptions reasonable; more realistic than IRR for most projects.
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